# Affiliated Managers Group, Inc.: filings

AMG · NYSE · CIK 1004434 · [Financials](/sectors/financials.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/amg.md) · [Financials](/companies/amg/financials.md) · [Filings](/companies/amg/filings.md) · [Insiders](/companies/amg/insiders.md)

## Reports and events: 261 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 697, 8-K 163, 13F-NT 71, 10-Q 53, SC 13G/A 45, DEFA14A 26, 3 25, 424B5 25, UPLOAD 20, 10-K 18, DEF 14A 18, CORRESP 15, 144 12, FWP 12, SC 13G 11, 10-K/A 8, 424B2 8, 8-A12B 6, S-3ASR 6, SCHEDULE 13G/A 6, ARS 5, 425 4, CERT 4, SCHEDULE 13G 4, N-PX 3, S-8 3, 25-NSE 2, 305B2 2, 424B3 2, CERTNYS 2, 3/A 1, 4/A 1, 5 1, EFFECT 1, POSASR 1, PRE 14A 1, S-4 1, S-4/A 1, SC 13D 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-07 | 17:28 ET | [10-Q](/filings/0001628280-26-054930.md) | Quarterly report, period 2026-06-30 | 0001628280-26-054930 |
| 2026-07-30 | 07:14 ET | [8-K](/filings/0001628280-26-050793.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-26-050793 |
| 2026-06-09 | 16:30 ET | [8-K](/filings/0001193125-26-263845.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-26-263845 |
| 2026-05-28 | 16:30 ET | [8-K](/filings/0001193125-26-245324.md) | 5.07 Shareholder vote results | 0001193125-26-245324 |
| 2026-05-07 | 16:19 ET | [10-Q](/filings/0001628280-26-032153.md) | Quarterly report, period 2026-03-31 | 0001628280-26-032153 |
| 2026-05-01 | 06:37 ET | [8-K](/filings/0001628280-26-029094.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-26-029094 |
| 2026-04-17 | 16:43 ET | [DEF 14A](/filings/0001628280-26-025798.md) | Proxy statement, period 2026-05-27 | 0001628280-26-025798 |
| 2026-02-26 | 16:31 ET | [8-K](/filings/0001193125-26-076911.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-076911 |
| 2026-02-17 | 17:15 ET | [10-K](/filings/0001628280-26-008665.md) | Annual report, period 2025-12-31 | 0001628280-26-008665 |
| 2026-02-12 | 07:08 ET | [8-K](/filings/0001628280-26-007464.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-26-007464 |
| 2026-02-12 | 06:40 ET | [8-K](/filings/0001193125-26-047590.md) | 5.02 Departure or appointment of officers or directors | 0001193125-26-047590 |
| 2025-12-11 | 16:30 ET | [8-K](/filings/0001193125-25-316053.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-25-316053 |
| 2025-12-08 | 17:04 ET | [8-K](/filings/0001193125-25-311380.md) | 8.01 Other events | 0001193125-25-311380 |
| 2025-11-06 | 16:22 ET | [10-Q](/filings/0001628280-25-050206.md) | Quarterly report, period 2025-09-30 | 0001628280-25-050206 |
| 2025-11-03 | 07:09 ET | [8-K](/filings/0001628280-25-047923.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-25-047923 |
| 2025-08-14 | 16:31 ET | [8-K](/filings/0001193125-25-180826.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-180826 |
| 2025-08-07 | 16:11 ET | [10-Q](/filings/0001004434-25-000045.md) | Quarterly report, period 2025-06-30 | 0001004434-25-000045 |
| 2025-07-31 | 07:12 ET | [8-K](/filings/0001004434-25-000042.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-25-000042 |
| 2025-06-06 | 16:31 ET | [8-K](/filings/0001193125-25-137112.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-137112 |
| 2025-05-22 | 16:30 ET | [8-K](/filings/0001193125-25-125095.md) | 5.07 Shareholder vote results | 0001193125-25-125095 |
| 2025-05-08 | 16:43 ET | [10-Q](/filings/0001004434-25-000039.md) | Quarterly report, period 2025-03-31 | 0001004434-25-000039 |
| 2025-05-08 | 07:02 ET | [8-K](/filings/0001004434-25-000036.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-25-000036 |
| 2025-04-11 | 16:35 ET | [DEF 14A](/filings/0001004434-25-000021.md) | Proxy statement, period 2025-05-22 | 0001004434-25-000021 |
| 2025-03-07 | 16:53 ET | [8-K](/filings/0001193125-25-049936.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-049936 |
| 2025-02-14 | 17:04 ET | [10-K](/filings/0001004434-25-000010.md) | Annual report, period 2024-12-31 | 0001004434-25-000010 |
| 2025-02-06 | 06:56 ET | [8-K](/filings/0001004434-25-000004.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-25-000004 |
| 2025-02-03 | 17:00 ET | [8-K](/filings/0001193125-25-019350.md) | 5.02 Departure or appointment of officers or directors | 0001193125-25-019350 |
| 2024-11-15 | 16:36 ET | [8-K](/filings/0001193125-24-259866.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-24-259866 |
| 2024-11-07 | 16:21 ET | [10-Q](/filings/0001004434-24-000049.md) | Quarterly report, period 2024-09-30 | 0001004434-24-000049 |
| 2024-11-04 | 07:08 ET | [8-K](/filings/0001004434-24-000045.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-24-000045 |
| 2024-08-20 | 16:15 ET | [8-K](/filings/0001193125-24-203661.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-24-203661 |
| 2024-08-02 | 16:29 ET | [10-Q](/filings/0001004434-24-000040.md) | Quarterly report, period 2024-06-30 | 0001004434-24-000040 |
| 2024-08-02 | 16:06 ET | [8-K](/filings/0001193125-24-192855.md) | 5.02 Departure or appointment of officers or directors | 0001193125-24-192855 |
| 2024-07-29 | 07:08 ET | [8-K](/filings/0001004434-24-000035.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-24-000035 |
| 2024-05-24 | 16:31 ET | [8-K](/filings/0001193125-24-147104.md) | 5.07 Shareholder vote results | 0001193125-24-147104 |
| 2024-05-07 | 16:40 ET | [10-Q](/filings/0001004434-24-000030.md) | Quarterly report, period 2024-03-31 | 0001004434-24-000030 |
| 2024-05-06 | 07:07 ET | [8-K](/filings/0001004434-24-000026.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-24-000026 |
| 2024-04-12 | 16:31 ET | [DEF 14A](/filings/0001004434-24-000019.md) | Proxy statement, period 2024-05-22 | 0001004434-24-000019 |
| 2024-03-25 | 09:06 ET | [8-K](/filings/0001193125-24-076041.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-24-076041 |
| 2024-03-20 | 16:14 ET | [8-K](/filings/0001193125-24-072712.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-24-072712 |
| 2024-02-16 | 16:10 ET | [10-K](/filings/0001004434-24-000010.md) | Annual report, period 2023-12-31 | 0001004434-24-000010 |
| 2024-02-05 | 07:07 ET | [8-K](/filings/0001004434-24-000005.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-24-000005 |
| 2023-11-06 | 16:24 ET | [10-Q](/filings/0001004434-23-000034.md) | Quarterly report, period 2023-09-30 | 0001004434-23-000034 |
| 2023-11-06 | 07:09 ET | [8-K](/filings/0001004434-23-000031.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-23-000031 |
| 2023-09-25 | 08:06 ET | [8-K](/filings/0001193125-23-240937.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001193125-23-240937 |
| 2023-08-07 | 16:07 ET | [10-Q](/filings/0001004434-23-000025.md) | Quarterly report, period 2023-06-30 | 0001004434-23-000025 |
| 2023-07-26 | 07:11 ET | [8-K](/filings/0001004434-23-000021.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-23-000021 |
| 2023-05-30 | 16:30 ET | [8-K](/filings/0001193125-23-156631.md) | 5.07 Shareholder vote results | 0001193125-23-156631 |
| 2023-05-08 | 16:48 ET | [10-Q](/filings/0001004434-23-000017.md) | Quarterly report, period 2023-03-31 | 0001004434-23-000017 |
| 2023-05-01 | 07:12 ET | [8-K](/filings/0001004434-23-000015.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001004434-23-000015 |

Page 1 of 6. [Older](/companies/amg/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:01 ET. No prices; not investment advice.